Duped Blade(Have 4* Stark spidy and 4* ghost rider both 5/50)
U have the trinity even though spidystark an ghostR are 4stars. Corvus is also amazing hits hard as hell, Void is great but battles have 2 last long for him 2 be really effective also I bet he will soon get nerfed an wont b as effective . Just my opinion
Duped Blade(Have 4* Stark spidy and 4* ghost rider both 5/50)
I'm in a very similar situation as you are, and I haven't pulled the trigger on ranking up my first 5* to R5. I'm leaning towards ranking up my duped Blade (over my duped Corvus, duped Void, and soon-to-be-duped AA) because I have the full trinity as maxed-out 4*, and a 5* GR.
I don't think you can really go wrong between Blade, Void or Hyperion, it might come down to what you are going to use them for. A 5* duped Blade with his regeneration is super useful for story and event quests, he saves you a lot of units.
But if you are trying to tackle Act 6, I'm not sure cause I haven't started that yet. Would love to know what you end up doing and why!
Duped Blade(Have 4* Stark spidy and 4* ghost rider both 5/50)
Voted for Blade couse you have the synergy team and can halp you a lot in month event and act IV and V. If you do not have problem with those contents then maybe duped void
Comments
I don't think you can really go wrong between Blade, Void or Hyperion, it might come down to what you are going to use them for. A 5* duped Blade with his regeneration is super useful for story and event quests, he saves you a lot of units.
But if you are trying to tackle Act 6, I'm not sure cause I haven't started that yet. Would love to know what you end up doing and why!
Just to give more idea. This is my current roster.